Modular brake assembly for a drive axle

Abstract

A modular brake assembly for a drive axle is proposed, comprising a multi-disk brake with a service brake element and a parking brake element, which is disposed in a brake housing ( 1 ) with inside diameter between an axle bracket and axle center component. A guide fixed to the housing is provided on the inside diameter of the brake housing ( 1 ) for the actuating device ( 6 ) for a mechanical differential lock.

1. A modular brake assembly for a drive axle comprising:
 a multi-disk brake having
 a service brake element ( 2 ) and 
 a parking brake element ( 3 ), 
 
 the modular brake assembly being located in a brake housing ( 1 ) axially between an axle bracket and an axle center component, 
 a guide being supported within the brake housing ( 1 ) on an inside diameter of the brake housing ( 1 ), and 
 the guide comprising a device ( 6 ) for actuating and locking a mechanical differential lock and a return spring ( 7 ) for deactivating and unlocking the mechanical differential lock, 
 an oil supply line ( 8 ) for supplying fluid to the device ( 6 ) for actuating the mechanical differential lock, and the oil supply line ( 8 ) extending through a bridge of the brake housing ( 1 ) located between the service brake element ( 2 ) and the parking brake element ( 3 ). 
 
   
   
     2. The modular brake assembly for a drive axle according to  claim 1 , wherein the actuating device ( 6 ) for the mechanical differential lock further comprises a coaxially piston ( 6 ) and a sliding sleeve of a form-fit clutch ( 11 ), the sliding sleeve is actuated by the piston ( 6 ), against a force of the return spring ( 7 ), and the return spring ( 7 ) is supported within the brake housing ( 1 ). 
   
   
     3. The modular brake assembly for a drive axle according to  claim 1 , wherein a service brake piston ( 2 ) acts upon the multi-disk brake by application of pressure and a return mechanism returns the service brake piston ( 2 ) to an inoperative position, during a reduction in pressure in a parking brake circuit, a spring device biases the parking brake piston ( 3 ) toward the service brake piston ( 2 ) via axially displaceable pins disposed on an outer radius of a piston chamber to engage the service brake piston ( 2 ), and the service brake piston ( 2 ) is released, via a parking brake circuit of the service brake piston ( 2 ), when pressure is applied to the parking brake circuit. 
   
   
     4. The modular brake assembly for a drive axle according to  claim 2 , wherein a displacing force of the piston ( 6 ), of the actuating device for the mechanical differential lock, is transmitted to the sliding sleeve via a mount ( 10 ) coupling the piston ( 6 ) to the return spring ( 7 ). 
   
   
     5. A modular brake assembly for a drive axle comprising:
 a multi-disk brake comprising:
 a service brake element ( 2 ), and 
 a parking brake element ( 3 ), 
 
 the modular brake assembly being located in a brake housing ( 1 ) axially between an axle bracket and an axle center component; 
 a piston ( 6 ) being supported within a bore of the brake housing ( 1 ) for actuating and locking a mechanical differential lock, and a return spring ( 7 ) being supported within a bore of the brake housing ( 1 ) for deactivating and unlocking the mechanical differential lock; and 
 an oil supply line ( 8 ), for supplying fluid to the piston ( 6 ), extending within the brake housing ( 1 ) between the service brake element ( 2 ) and the parking brake element ( 3 ). 
 
   
   
     6. The modular brake assembly for a drive axle according to  claim 5 , wherein a service brake piston ( 2 ) acts upon the multi-disk brake by application of pressure and a return mechanism returns the service brake piston ( 2 ) to an inoperative position, during a reduction in pressure in a parking brake circuit, a spring device biases the parking brake piston ( 3 ) toward the service brake piston ( 2 ) via axially displaceable pins disposed on an outer radius of a piston chamber for engaging the service brake piston ( 2 ), and the service brake piston ( 2 ) is released, via a parking brake circuit of the service brake piston ( 2 ), when pressure is applied to the parking brake circuit. 
   
   
     7. The modular brake assembly for a drive axle according to  claim 5 , wherein a displacing force of the piston ( 6 ), of the actuating device for the mechanical differential lock, is transmitted to the sliding sleeve via a mount ( 10 ) couples the piston ( 6 ) to the return spring ( 7 ). 
   
   
     8. A modular brake assembly for a drive axle comprising:
 a multi-disk brake comprising:
 a service brake element ( 2 ), 
 a parking brake element ( 3 ), and 
 a bridge of a brake housing separating the service brake element ( 2 ) from the parking brake element ( 3 ); 
 
 the modular brake assembly being located in the brake housing ( 1 ) axially between an axle bracket and an axle center component; 
 a piston ( 6 ) being supported within a bore of the brake housing ( 1 ) for actuating and locking a mechanical differential lock, and a return spring ( 7 ) being supported within a bore of the brake housing ( 1 ) for deactivating and unlocking the mechanical differential lock; 
 an oil supply line ( 8 ), for supplying fluid to the piston ( 6 ), extending within the bridge of the brake housing ( 1 ) located between the service brake element ( 2 ) and the parking brake element ( 3 ); and 
 the return spring ( 7 ) being located radially inward of and axially between the service brake element ( 2 ) from the parking brake element ( 3 ). 
 
   
   
     9. The modular brake assembly for a drive axle according to  claim 8 , wherein a service brake piston ( 2 ) acts upon the multi-disk brake by application of pressure and a return mechanism returns the service brake piston ( 2 ) to an inoperative position, during a reduction in pressure in a parking brake circuit, a spring device biases the parking brake piston ( 3 ) toward the service brake piston ( 2 ) via axially displaceable pins disposed on an outer radius of a piston chamber for engaging the service brake piston ( 2 ), and the service brake piston ( 2 ) is released, via a parking brake circuit of the service brake piston ( 2 ), when pressure is applied to the parking brake circuit. 
   
   
     10. The modular brake assembly for a drive axle according to  claim 8 , wherein a displacing force of the piston ( 6 ), of the actuating device for the mechanical differential lock, is transmitted to the sliding sleeve via a mount ( 10 ) couples the piston ( 6 ) to the return spring ( 7 ).